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Federal
Total Inward Leakage (TIL) for Respiratory Protective Devices
U.S. Department of Health & Human Services —
Total inward leakage (TIL) is an estimate of the performance of a respirator, which is measured as the leakage of contaminants through the filter media and through... -
Federal
Elk Creek Seismic Waveforms 2013
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 6 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2010 (Part 6 of 7)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2012 (Part 7 of 20)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2012 (Part 10 of 20)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2012 (Part 8 of 20)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2012 (Part 15 of 20)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 11 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 4 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2012 (Part 20 of 20)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2010 (Part 2 of 7)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 8 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 19 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 9 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 5 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2012 (Part 19 of 20)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2010 (Part 5 of 7)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2012 (Part 4 of 20)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s... -
Federal
Elk Creek Seismic Waveforms 2011 (Part 2 of 19)
U.S. Department of Health & Human Services —
Coal bursts (damaging seismic events in underground coal mines) pose a substantial threat to operations and mine workers. The underground coal mines in Colorado’s...